Page 326 of 476

Black plate (60,1)Cadillac Escalade EXT Owner Manual - 2013 - CRC - 4/5/12
9-60 Driving and Operating
Do not tap into the vehicle's
hydraulic system.
Trailer Wiring Harness
Heavy-Duty Trailer Wiring Harness
Package
The vehicle has a seven-pin
universal heavy-duty trailer
connector attached to the rear
bumper beam next to the integrated
trailer hitch.
The seven-wire harness contains
the following trailer circuits:
.Yellow: Left Stop/Turn Signal
.Dark Green: Right Stop/Turn
Signal
.Brown: Taillamps
.White: Ground
.Light Green: Back-up Lamps
.Red w/ Black Stripe:
Battery Feed
.Dark Blue: Trailer Brake
If charging a remote (non-vehicle)
battery, press the tow/haul mode
button located at the end of the shift
lever. This will boost the vehicle
system voltage and properly charge
the battery. If the trailer is too light
for tow/haul mode, turn on the
headlamps as a second way to
boost the vehicle system and
charge the battery.
Electric Brake Control Wiring
Provisions
These wiring provisions are
included with the vehicle as part of
the trailer wiring package. These
provisions are for an electric brake
controller. The instrument panel
contains blunt cut wires near the
data link connector for the trailer
brake controller. The harness
contains the following wires:
.Dark Blue: Brake Signal to
Trailer Connector
.Red/Black: Battery
.Light Blue/White: Brake Switch
.White: Ground
It should be installed by your dealer
or a qualified service center.
Page 328 of 476
Black plate (62,1)Cadillac Escalade EXT Owner Manual - 2013 - CRC - 4/5/12
9-62 Driving and Operating
Conversions and
Add-Ons
Add-On Electrical
Equipment
Notice:Some electrical
equipment can damage the
vehicle or cause components to
not work and would not be
covered by the warranty. Always
check with your dealer before
adding electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle on page 3‑29 andAdding
Equipment to the Airbag-Equipped
Vehicle on page 3‑29.
Page 329 of 476

Black plate (1,1)Cadillac Escalade EXT Owner Manual - 2013 - CRC - 4/5/12
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-3
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-5
Engine Oil . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil Life System . . . . . . 10-9
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . 10-9
Engine Air Cleaner/Filter . . . . 10-12
Cooling System . . . . . . . . . . . . 10-13
Engine Coolant . . . . . . . . . . . . . 10-14
Engine Overheating . . . . . . . . 10-17
Overheated Engine Protection
Operating Mode . . . . . . . . . . . 10-19 Engine Fan . . . . . . . . . . . . . . . . . 10-19
Power Steering Fluid . . . . . . . 10-20
Washer Fluid . . . . . . . . . . . . . . . 10-20
Brakes . . . . . . . . . . . . . . . . . . . . . 10-21
Brake Fluid . . . . . . . . . . . . . . . . . 10-22
Battery . . . . . . . . . . . . . . . . . . . . . 10-24
All-Wheel Drive . . . . . . . . . . . . . 10-24
Front Axle . . . . . . . . . . . . . . . . . . 10-25
Rear Axle . . . . . . . . . . . . . . . . . . 10-25
Starter Switch Check . . . . . . . 10-26
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-27
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-27
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-27
Wiper Blade Replacement . . . . . . . . . . . . . . 10-28
Glass Replacement . . . . . . . . 10-28
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-29
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-29
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . 10-29 Taillamps, Turn Signal,
Sidemarker, Stoplamps,
and Back-Up Lamps . . . . . . 10-29
License Plate Lamp . . . . . . . . 10-30
Replacement Bulbs . . . . . . . . . 10-30
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-31
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-32
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-32
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-37
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-39
All-Season Tires . . . . . . . . . . . . 10-41
Winter Tires . . . . . . . . . . . . . . . . 10-41
Summer Tires . . . . . . . . . . . . . . 10-41
Tire Sidewall Labeling . . . . . . 10-42
Tire Designations . . . . . . . . . . . 10-43
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-44
Tire Pressure . . . . . . . . . . . . . . . 10-46
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . 10-48
Page 334 of 476

Black plate (6,1)Cadillac Escalade EXT Owner Manual - 2013 - CRC - 4/5/12
10-6 Vehicle Care
A.Engine Air Cleaner/Filter on
page 10‑12.
B. Coolant Surge Tank and Pressure Cap. See Cooling
System on page 10‑13.
C. Remote Positive (+) Terminal. See Jump Starting on
page 10‑73.
D. Battery on page 10‑24.
E. Remote Negative (−) Terminal (GND) (Out of View). See Jump
Starting on page 10‑73.
F. Automatic Transmission Dipstick (Out of View). See
“Checking the Fluid Level”
under Automatic Transmission
Fluid on page 10‑9.
G. Engine Oil Fill Cap. See “When
to Add Engine Oil” under
Engine Oil on page 10‑6.
H. Engine Oil Dipstick (Out of View). See “Checking Engine
Oil” under Engine Oil on
page 10‑6. I. Engine Cooling Fan (Out of
View). See Cooling System on
page 10‑13.
J. Power Steering Fluid Reservoir (Out of View). See Power
Steering Fluid on page 10‑20.
K. Brake Master Cylinder Reservoir. See “Brake Fluid”
under Brake Fluid on
page 10‑22.
L. Engine Compartment Fuse
Block on page 10‑32.
M. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10‑20.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10‑9.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Page 352 of 476

Black plate (24,1)Cadillac Escalade EXT Owner Manual - 2013 - CRC - 4/5/12
10-24 Vehicle Care
.If brake fluid is spilled on the
vehicle's painted surfaces,
the paint finish can be
damaged. Be careful not to
spill brake fluid on the
vehicle. If you do, wash it off
immediately.
Battery
Refer to the replacement number
shown on the original battery label
when a new battery is needed. See
Engine Compartment Overview on
page 10‑5for battery location.
{WARNING
Battery posts, terminals, and
related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling.
Vehicle Storage
{WARNING
Batteries have acid that can burn
you and gas that can explode.
You can be badly hurt if you are
not careful. See Jump Starting on
page 10‑73 for tips on working
around a battery without
getting hurt.
Infrequent Usage: Remove the
black, negative (−) cable from the
battery to keep the battery from
running down.
Extended Storage: Remove the
black, negative (−) cable from the
battery or use a battery trickle
charger.
All-Wheel Drive
Transfer Case
If the vehicle is equipped with
All-Wheel Drive, be sure to perform
the lubricant checks described in
this section.
When to Check Lubricant
Refer to Maintenance Schedule on
page 11‑3 to determine how often to
check the lubricant.
How to Check Lubricant
To get an accurate reading, the
vehicle should be on a level
surface.
Page 362 of 476

Black plate (34,1)Cadillac Escalade EXT Owner Manual - 2013 - CRC - 4/5/12
10-34 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Right Trailer Stop/
Turn Lamp
2 Electronic Stability
Suspension
Control, Automatic
Level Control
Exhaust
3 Left Trailer Stop/
Turn Lamp
4 Engine Controls
5 Engine Control
Module, Throttle
Control
6 Trailer Brake
Controller
7 Front Washer
8 Oxygen Sensors
9 Antilock Brake
System 2 Fuses Usage
10 Trailer Back-up
Lamps
11 Driver Side
Low-Beam
Headlamp
12 Engine Control
Module (Battery)
13 Fuel Injectors,
Ignition Coils
(Right Side)
14 Transmission
Control Module
(Battery)
15 Vehicle Back-up
Lamps
16 Passenger Side
Low-Beam
Headlamp
17 Air Conditioning
Compressor
18 Oxygen Sensors Fuses Usage
19 Transmission
Controls (Ignition)
20 Fuel Pump
21 Fuel System
Control Module
22 Headlamp Washer
23 Rear Windshield
Washer
24 Fuel Injectors,
Ignition Coils
(Left Side)
25 Trailer Park Lamps
26 Driver Side Park
Lamps
27 Passenger Side
Park Lamps
28 Fog Lamps
29 Horn
30 Passenger Side
High-Beam
Headlamp
Page 363 of 476

Black plate (35,1)Cadillac Escalade EXT Owner Manual - 2013 - CRC - 4/5/12
Vehicle Care 10-35
FusesUsage
31 Daytime Running
Lamps (DRL) (If
Equipped)
32 Driver Side
High-Beam
Headlamp
33 Daytime Running
Lamps 2 (If
Equipped)
34 Sunroof
35 Key Ignition
System, Theft‐
Deterrent System
36 Windshield Wiper
37 SEO B2 Upfitter
Usage (Battery)
38 Electric Adjustable
Pedals
39 Climate Controls
(Battery)
40 Airbag System
(Ignition) Fuses
Usage
41 Amplifier
42 Audio System
43 Miscellaneous
(Ignition), Cruise
Control
44 Liftgate Release
45 Airbag System
(Battery)
46 Instrument Panel
Cluster
47 Not Used
48 Auxiliary Climate
Control (Ignition)
49 Center
High-Mounted
Stoplamp (CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Upfitter
Usage (Battery) Fuses
Usage
53 Accessory Power
Outlet, Cigarette
Lighter (If
Equipped)
54 Automatic Level
Control
Compressor Relay
55 Climate Controls
(Ignition)
56 Engine Control
Module, Secondary
Fuel Pump
(Ignition)
J-Case Fuses Usage
57 Cooling Fan 1
58 Automatic Level
Control
Compressor
59 Heavy Duty
Antilock Brake
System
Page 364 of 476
Black plate (36,1)Cadillac Escalade EXT Owner Manual - 2013 - CRC - 4/5/12
10-36 Vehicle Care
J-CaseFuses Usage
60 Cooling Fan 2
61 Antilock Brake
System 1
62 Starter
63 Stud 2 (Trailer
Brakes)
64 Left Bussed
Electrical Center 1
65 Electric Running
Boards
66 Not Used
67 Transfer Case
68 Stud 1 (Trailer
Connector Battery
Power)
69 Mid-Bussed
Electrical Center 1
70 Climate Control
Blower J-Case
Fuses Usage
71 Power Liftgate
Module
72 Left Bussed
Electrical Center 2
Relays Usage
FAN HI Cooling Fan High
Speed
FAN LO Cooling Fan Low
Speed
FAN CNTRL Cooling Fan
Control
HDLP
LO/HID Low-Beam
Headlamp
FOG LAMP Front Fog Lamps
A/C
CMPRSR Air Conditioning
Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump Relays Usage
PRK LAMP Parking Lamps
REAR
DEFOG Rear Defogger
RUN/CRNK Switched Power